Update index.md

assignments/lab/data_visualization/index.md

@@ -45,7 +45,7 @@ full_design_df = pd.concat([counts_df_normed, metadata], axis=1)
 
 Generate the following figures. For all figures, label the axes appropriately, provide legends only when necessary, do not place a title or any other elements on the plot itself. 
 
-1. For subject GTEX-113JC, plot the distribution of expression across all 54,592 genes.
+1. For subject GTEX-113JC, plot the distribution of expression across all 54,592 genes. Use a [log scale](https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.set_xscale.html#matplotlib.axes.Axes.set_xscale) if necessary.
 
 2. Plot the expression distribution of the gene MXD4 in males versus females.